A sequel to Alien: Inferno's Fall, the story follows Mae Hendricks, a scavenged amnesiac who is secretly one of the most sophisticated human-Xenomorph symbiotes ever made, as she helps her adoptive family and a covert Colonial Marine unit called the Jackals expose the corporations engineering a new alien pathogen. When settlements start falling to a plague that turns colonists into ravenous hordes, Guelph Station is next.
Summary by Loreful, from public sources